A customer relationship management (CRM) system helps a company to plan, execute, and control all the activities involved in raw material sourcing and procurement, conversion of raw materials to finished products, and the warehousing and delivery of finished product to customers.

Which of the following adapter types uses a 7-pin cable to transmit video signals?

A. RGB B. S-Video C. HDMI D. DVI

Prove that the algorithm for synthesizing 3NF decompositions yields schemas that satisfy the conditions of 3NF.

Use the proof-by-contradiction technique. Assume that some FD violates 3NF and then show that this contradicts the fact that the algorithm synthesized schemas out of a minimal cover.